CA1043636A - Ship or similar floating installation equipped for the assembly of apparatus and for lowering same into the water - Google Patents
Ship or similar floating installation equipped for the assembly of apparatus and for lowering same into the waterInfo
- Publication number
- CA1043636A CA1043636A CA258,846A CA258846A CA1043636A CA 1043636 A CA1043636 A CA 1043636A CA 258846 A CA258846 A CA 258846A CA 1043636 A CA1043636 A CA 1043636A
- Authority
- CA
- Canada
- Prior art keywords
- opening
- ship
- deck
- dock
- intermediate deck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
- Jib Cranes (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
- Earth Drilling (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The invention is used on a ship or similar floating installation equipped with a working deck, a lower intermediate deck and below this a bottom below water level.
The ship is constructed in such a way that apparatus like large blow-out preventers can be assembled and tested without causing great loss of time during other operations and without necessitating radical alterations in the design of the working deck. The intermediate deck is provided with spaces for the assembly of apparatus, which can be lowered through an opening, characterised in that on the bottom and next to the opening the ship is provided with a dock with gates at the side of the opening and accessible from the intermediate deck, which gates can be opened and when closed allow the dock to be pumped dry.
The invention is used on a ship or similar floating installation equipped with a working deck, a lower intermediate deck and below this a bottom below water level.
The ship is constructed in such a way that apparatus like large blow-out preventers can be assembled and tested without causing great loss of time during other operations and without necessitating radical alterations in the design of the working deck. The intermediate deck is provided with spaces for the assembly of apparatus, which can be lowered through an opening, characterised in that on the bottom and next to the opening the ship is provided with a dock with gates at the side of the opening and accessible from the intermediate deck, which gates can be opened and when closed allow the dock to be pumped dry.
Description
104;~36 ~ be invention relate~ to a ~hip or similar floating installation provided with a working deck, a lower situated intermediate deck and below this a bottom below water level.
ThiR intermediate deck is provided with spaces for the as~embly of apparatus which can be lowered through an opening. This type of ~hip is known as a drill ship. Tn this case it is customary to assemble and to test the apparatus, such as a blow-out seal, on the intermediatc deck. As long as the apparatus, for example a blow-out preventor, is of moderate ~ize and allows the assembly and the testing to be carried out within the restricted height between the workiog deck and the intermediate deck, no special problems will arise.
However, where the apparatus to be assembled become3 too large for this space, problems do arise. Of course, the height bstwee~ the working deck and the intermediate de¢k ¢an be in¢reased, though this will be at the oxpen~e of the stability of the ship. It is known that to solve this problem a blow-out preventor for example, is ? assembled in two separate parts, then ~e two parts move~
to tke centre above the opening, coupling them up, testing and then lowering through the opening. ~hese operations are very time consuming and meanwhile no further drilling oan be do~e. Furthermore, the working deck has to be constructed in suoh a way as to allow the turntable to be removed, to enable the top part of the blow-out preventor to protrude through.
It is also known to provide the working deck with a slot. The blow-out preventor, assembled and -tested, located on the intermediate deck, protrudes upwards through this 1.1 1043~35 510t and h~; to be ~oved ~ideways in order to bring it above the openin~. ~his cuts down the loss of time, but the working deck has to be fitted with removable parts and consequentl~ becomes complicated and expen~ive.
The purpose of the invention i8 to construct a ship in such a way that apparatus like large blow-out preventors can be assembled and tested without causing great ]oss of time during other ope~ations, and without necessitating radical alterations in the design o* the working deck.
According to the invention this aim i~ achieved by providing the ~hip with a dock and gates on the bottom and next to the opening, the gates being able to open to the side of the opening and the dock being accessible from the intermediate deck. According to the invention, therefore, th¢ floor where the work on the apparatus is carried out i~
moved to a lower level, the bottom, for example, and this section i~ closed towards the opening by means of gates. In this way a dock is created, the bottom of which is below water level. ~he intermediate deck can be utilised in th~
usual way for assembling the parts of the apparatus. ~hese ear~ be assembled and tested in the dock when dry and thereupon the dock can be filled and the apparatus lowered through the open gates of the dock above the opening. ~he free height required above th¢ deck for these operations is now restricted and the lo~r setting of the often heavy apparatus has a favourable influence on the stability of the ship.
~ here is hardly any need to interrupt other operations and if the dock is large enough *urther units assembled and tested can be stored.
;. , - . .
;,,, ~ .
r 1C~3~ 3~
With increased si~e of apparatus, such as large and heavy blo~J-out seals, it becomes all the more difficult to control the mo~ements caused by the roll of the ship.
A further advantage of the invention i8 that the apparatus on removal fro~ the dock to the opening is ~uspended in the water, thus reducing the roll. This enable~ the apparatu~ to be lowered under fairly bad weather conditions.
The invention is explained further by the drawin~s.
Fig. 1 is a cro~s ~ection through a part of a ship, namely through the longitudinal axis of the ship, according to line I-I Or Fig. 3.
$ie. 2 i9 a ~ection according to line II-II of Fig. 3.
Fig. 3 is a view from above.
~he drawing~ ~how a hull 1, with bottom 2 and an intermediate deck 3, with the hull carrying a worXing deck 4, The bottom has an opening 5.
On the bottom 2 and next to opening 4 there is the compartment 6 with vertical walls 7j 8 and 9 and havin~
~luice gate~ 10.
In the clo~ed position, as shown in fig. ~, the water in the compartment within the walls 7 to 10 inclusive can i, be evacuated and the assembly of the apparatus, for example parts 11, 12 and 13 of the blow-out preventor, can take ~ , , .
place on the bottom in the dock. Fig. 1 shows the bottom section 11 seated on the dock bottom, the centre section 12 on the intermediate deck 3 and the top section 13 on another part of the intermediate deck 3. These section~ can ~be assembled with the aid of handling equipment, such as a - - -.
- 4 _ , ,~ '' , ., . ~ .. . ..... . . . . . .
lifting crane. ~or this purpose, part of the transporter rail 15 i5 made removable. After completion of these operations the sluice gates 10 can be opened and the assembly, as shown in fi~. 2, moved from the dock over the ope~ing 5 by means of handling equipment, suck as the travelling crane 14, and then be lowered.
We have cho~en a blow-out ~reventor as an example of the apparatus to be assembled. However, the principle could apply equally well to diving apparatus, pipeline ~0 repair equipment, submerged well-seals and many others.
~ he opening need not be in the middle of the hull.
It is quite possible to arrange for the doors to be opened at one side of the ship so that the apparatus can be lowered alongside the ship.
.
ThiR intermediate deck is provided with spaces for the as~embly of apparatus which can be lowered through an opening. This type of ~hip is known as a drill ship. Tn this case it is customary to assemble and to test the apparatus, such as a blow-out seal, on the intermediatc deck. As long as the apparatus, for example a blow-out preventor, is of moderate ~ize and allows the assembly and the testing to be carried out within the restricted height between the workiog deck and the intermediate deck, no special problems will arise.
However, where the apparatus to be assembled become3 too large for this space, problems do arise. Of course, the height bstwee~ the working deck and the intermediate de¢k ¢an be in¢reased, though this will be at the oxpen~e of the stability of the ship. It is known that to solve this problem a blow-out preventor for example, is ? assembled in two separate parts, then ~e two parts move~
to tke centre above the opening, coupling them up, testing and then lowering through the opening. ~hese operations are very time consuming and meanwhile no further drilling oan be do~e. Furthermore, the working deck has to be constructed in suoh a way as to allow the turntable to be removed, to enable the top part of the blow-out preventor to protrude through.
It is also known to provide the working deck with a slot. The blow-out preventor, assembled and -tested, located on the intermediate deck, protrudes upwards through this 1.1 1043~35 510t and h~; to be ~oved ~ideways in order to bring it above the openin~. ~his cuts down the loss of time, but the working deck has to be fitted with removable parts and consequentl~ becomes complicated and expen~ive.
The purpose of the invention i8 to construct a ship in such a way that apparatus like large blow-out preventors can be assembled and tested without causing great ]oss of time during other ope~ations, and without necessitating radical alterations in the design o* the working deck.
According to the invention this aim i~ achieved by providing the ~hip with a dock and gates on the bottom and next to the opening, the gates being able to open to the side of the opening and the dock being accessible from the intermediate deck. According to the invention, therefore, th¢ floor where the work on the apparatus is carried out i~
moved to a lower level, the bottom, for example, and this section i~ closed towards the opening by means of gates. In this way a dock is created, the bottom of which is below water level. ~he intermediate deck can be utilised in th~
usual way for assembling the parts of the apparatus. ~hese ear~ be assembled and tested in the dock when dry and thereupon the dock can be filled and the apparatus lowered through the open gates of the dock above the opening. ~he free height required above th¢ deck for these operations is now restricted and the lo~r setting of the often heavy apparatus has a favourable influence on the stability of the ship.
~ here is hardly any need to interrupt other operations and if the dock is large enough *urther units assembled and tested can be stored.
;. , - . .
;,,, ~ .
r 1C~3~ 3~
With increased si~e of apparatus, such as large and heavy blo~J-out seals, it becomes all the more difficult to control the mo~ements caused by the roll of the ship.
A further advantage of the invention i8 that the apparatus on removal fro~ the dock to the opening is ~uspended in the water, thus reducing the roll. This enable~ the apparatu~ to be lowered under fairly bad weather conditions.
The invention is explained further by the drawin~s.
Fig. 1 is a cro~s ~ection through a part of a ship, namely through the longitudinal axis of the ship, according to line I-I Or Fig. 3.
$ie. 2 i9 a ~ection according to line II-II of Fig. 3.
Fig. 3 is a view from above.
~he drawing~ ~how a hull 1, with bottom 2 and an intermediate deck 3, with the hull carrying a worXing deck 4, The bottom has an opening 5.
On the bottom 2 and next to opening 4 there is the compartment 6 with vertical walls 7j 8 and 9 and havin~
~luice gate~ 10.
In the clo~ed position, as shown in fig. ~, the water in the compartment within the walls 7 to 10 inclusive can i, be evacuated and the assembly of the apparatus, for example parts 11, 12 and 13 of the blow-out preventor, can take ~ , , .
place on the bottom in the dock. Fig. 1 shows the bottom section 11 seated on the dock bottom, the centre section 12 on the intermediate deck 3 and the top section 13 on another part of the intermediate deck 3. These section~ can ~be assembled with the aid of handling equipment, such as a - - -.
- 4 _ , ,~ '' , ., . ~ .. . ..... . . . . . .
lifting crane. ~or this purpose, part of the transporter rail 15 i5 made removable. After completion of these operations the sluice gates 10 can be opened and the assembly, as shown in fi~. 2, moved from the dock over the ope~ing 5 by means of handling equipment, suck as the travelling crane 14, and then be lowered.
We have cho~en a blow-out ~reventor as an example of the apparatus to be assembled. However, the principle could apply equally well to diving apparatus, pipeline ~0 repair equipment, submerged well-seals and many others.
~ he opening need not be in the middle of the hull.
It is quite possible to arrange for the doors to be opened at one side of the ship so that the apparatus can be lowered alongside the ship.
.
Claims (2)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A ship for the storage, assembly and movement of under water apparatus comprising:
a floating hull provided with a bottom, said bottom having an opening therein for the movement of said under water apparatus;
an intermediate deck in said hull above the bottom, said intermediate deck having an opening therein in vertical alignment with the opening in the hull and of an area greater than the opening in the bottom so as to overlie a portion of the bottom adjacent the opening in the bottom;
walls forming a dock compartment on said portion of the bottom adjacent the opening in the bottom and beneath the opening in the intermediate deck;
gates between the dock compartment and space above the opening in the bottom for closing communication between the dock com-partment and the space above the opening in the bottom and for pro-viding access between said compartment and said space over the opening in said bottom for the movement of apparatus from the dock compartment to said space above the opening in the bottom, and a working deck carried by said ship above the intermediate deck.
a floating hull provided with a bottom, said bottom having an opening therein for the movement of said under water apparatus;
an intermediate deck in said hull above the bottom, said intermediate deck having an opening therein in vertical alignment with the opening in the hull and of an area greater than the opening in the bottom so as to overlie a portion of the bottom adjacent the opening in the bottom;
walls forming a dock compartment on said portion of the bottom adjacent the opening in the bottom and beneath the opening in the intermediate deck;
gates between the dock compartment and space above the opening in the bottom for closing communication between the dock com-partment and the space above the opening in the bottom and for pro-viding access between said compartment and said space over the opening in said bottom for the movement of apparatus from the dock compartment to said space above the opening in the bottom, and a working deck carried by said ship above the intermediate deck.
2. A ship according to claim 1 wherein means is carried by the working deck for moving apparatus from the dock compartment to the space above the opening in the bottom when the gates are open.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7509546A NL7509546A (en) | 1975-08-11 | 1975-08-11 | SHIP OR SIMILAR FLOATING INSTALLATION WITH EQUIPMENT ASSEMBLY AND LOWERING INTO THE WATER. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1043636A true CA1043636A (en) | 1978-12-05 |
Family
ID=19824282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA258,846A Expired CA1043636A (en) | 1975-08-11 | 1976-08-10 | Ship or similar floating installation equipped for the assembly of apparatus and for lowering same into the water |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4069785A (en) |
| JP (1) | JPS5222294A (en) |
| CA (1) | CA1043636A (en) |
| DE (1) | DE2636411C3 (en) |
| FR (1) | FR2320861A1 (en) |
| GB (1) | GB1520953A (en) |
| NL (1) | NL7509546A (en) |
| NO (1) | NO762756L (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312287A (en) * | 1977-09-30 | 1982-01-26 | The University Of Strathclyde | Apparatus for handling submersibles at sea |
| GB2122138B (en) * | 1982-04-27 | 1985-10-16 | Hydro Betong Ab | Buoyant plant especially for the off-shore manufacturing of concrete structures |
| JPS61150086U (en) * | 1985-03-11 | 1986-09-17 | ||
| FR2584673A1 (en) * | 1985-07-12 | 1987-01-16 | Nord Mediterranee Chantiers | Semi-submersible platform |
| NO304851B1 (en) * | 1994-12-16 | 1999-02-22 | Stolt Comex Seaway As | Device on board a floating vessel having a vertical passage through the hull |
| NO980987D0 (en) * | 1997-12-11 | 1998-03-06 | Ormen Brede As | Drilling and production vessels |
| US6260502B1 (en) * | 1998-03-31 | 2001-07-17 | Owen Kratz | Semi-submersible vessel |
| US6321675B1 (en) | 1998-12-10 | 2001-11-27 | Ormen Brede As | Floating installation |
| US6367402B1 (en) * | 2000-04-04 | 2002-04-09 | J. Ray Mcdermott, S.A. | Multi-use construction vessel |
| EP2093143B1 (en) * | 2008-02-19 | 2011-04-27 | Wärtsilä Ship Design Germany GmbH | Service vessel |
| DE102008020965A1 (en) * | 2008-04-25 | 2009-10-29 | Voith Patent Gmbh | Apparatus and method for the installation and service of underwater power plants |
| KR101511209B1 (en) * | 2010-10-08 | 2015-04-13 | 대우조선해양 주식회사 | Damping apparatus for moon pool |
| US9500040B2 (en) * | 2015-03-05 | 2016-11-22 | Patterson-Uti Drilling Company Llc | Blowout preventer trolley |
| IT202000001351A1 (en) * | 2020-01-23 | 2021-07-23 | Innovo Engineering And Construction Ltd | SYSTEM FOR MOVING AN ANTI-BREAKAGE SAFETY VALVE AND PROCEDURE FOR MOVING SAID VALVE |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2287434A (en) * | 1940-10-07 | 1942-06-23 | Charles O Knudsen | Floating drydock |
| US3327670A (en) * | 1965-09-29 | 1967-06-27 | Burnett Arden Louis | Combination drydocking facility and shop |
| US3524421A (en) * | 1967-12-11 | 1970-08-18 | Lykes Enterprises Inc | Barge handling means and method |
| US3672447A (en) * | 1968-09-10 | 1972-06-27 | Richfield Oil Corp | Marine well drilling method and apparatus |
| US3894640A (en) * | 1974-06-13 | 1975-07-15 | Global Marine Inc | Apparatus for raising and lowering large objects from a surface ship |
-
1975
- 1975-08-11 NL NL7509546A patent/NL7509546A/en unknown
-
1976
- 1976-08-09 NO NO762756A patent/NO762756L/no unknown
- 1976-08-10 CA CA258,846A patent/CA1043636A/en not_active Expired
- 1976-08-10 GB GB33296/76A patent/GB1520953A/en not_active Expired
- 1976-08-11 FR FR7624586A patent/FR2320861A1/en active Granted
- 1976-08-11 US US05/713,360 patent/US4069785A/en not_active Expired - Lifetime
- 1976-08-11 DE DE2636411A patent/DE2636411C3/en not_active Expired
- 1976-08-11 JP JP51095915A patent/JPS5222294A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2636411C3 (en) | 1978-11-30 |
| FR2320861A1 (en) | 1977-03-11 |
| US4069785A (en) | 1978-01-24 |
| DE2636411A1 (en) | 1977-02-17 |
| JPS5611634B2 (en) | 1981-03-16 |
| NO762756L (en) | 1977-02-14 |
| GB1520953A (en) | 1978-08-09 |
| DE2636411B1 (en) | 1978-04-13 |
| JPS5222294A (en) | 1977-02-19 |
| NL7509546A (en) | 1977-02-15 |
| FR2320861B1 (en) | 1978-05-05 |
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